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Freestanding Flex Space
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-405 Main Street, South Amboy, NJ 08879

Main Street building with B-1 zoning and two overhead doors supports a range of commercial configurations.

Property Size1,500 SF
Price / SF$233.33
Days on Market1810

Property Features for -405 Main Street

General Information

Standard status Active
Size 1,500 SF
Property subtype Special Purpose
Zoning B-1

Additional Details

Road Access Yes

Amenities

2 10'+ high overhead doors
Listing Agency: C21 CHARLES SMITH AGENCY, INC
Listed By: TODD KESSLER · License #NJ
Source: Crexi
Added: Sep 18, 2021 Changed: Aug 30 Last Checked: Aug 30 at 11:40PM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of C21 CHARLES SMITH AGENCY, INC

Investment Insights

Based on property information with market context.

This freestanding flex building contains approximately 1,500 square feet on an irregular lot. The property includes two overhead doors measuring more than 10 feet high, providing functional access for commercial or light industrial operations. B-1 zoning applies, with permitted uses subject to confirmation by the City of South Amboy.

The building is located on Main Street in South Amboy, New Jersey. The vacant parcel behind the building is not included in the property and is being offered separately. The building is conveyed in its existing condition, and buyers should independently verify zoning, planning requirements, and intended-use approvals before proceeding.

Key Highlights

  • Approximately 1,500 SF building on an irregular lot
  • Two overhead doors exceeding 10 feet in height
  • B‑1 zoning; permitted uses to be verified with the City of South Amboy

Financial Insights

Estimated NOI and Cap Rate

NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$21,802
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
6.23%
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$436,040 $436.0K
Cap Rate 7%
$311,457 $311.5K
Cap Rate 9%
$242,244 $242.2K
Market Conditions
NOI Build-Up for 1,500 SF Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent. EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs. OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements. NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$43.6K $29.04/SF
− Vacancy
−$10.0K −$6.68/SF
EGI
$33.5K $22.36/SF
− OpEx
−$11.7K −$7.83/SF
NOI
$21.8K $14.53/SF
Area
Middlesex County, NJ
Vacancy
23.00%
Lease Rate
$29.04 /SF/Yr
Expense Ratio
35.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$436,040
Cap Rate 7%
$311,457
Cap Rate 9%
$242,244

Alternative Uses

Best Use
Flex RnD
$311.5K
$272.5K – $363.4K (±1% cap)
NOI $21,802 @ 7.0% cap · market cap 6.23%
Second Best
Warehouse
$292.1K
$255.6K – $340.7K (±1% cap)
NOI $20,444 @ 7.0% cap · market cap 5.84%
Theoretical Best
Office A
$391.7K
$342.7K – $457.0K (±1% cap)
NOI $27,418 @ 7.0% cap · market cap 7.83%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Flex space

Suggested Use

Top Pick Law Firm Real Estate Agency Hair Salon Grocery & Convenience Store Skin Care Clinic Food Market

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

Yes
Paved road access

Location Intelligence

Trade Area within ½ mile

740
Businesses Nearby
Under-served
Demand for This Use

Demographics for 08879, NJ

22,965
Population
9,737
Households
2.4
Avg Household Size
42
Median Age
32%
College-Educated
89%
High-School Grad
7.1 sq mi
ZIP Area
3,235
Density / Sq Mi
$98,000
Median Household Income
$57,998
Median Earnings
$1,633
Median Rent
$377,700
Median Home Value

Market

Vacancy Rate% for Industrial in Northeast region

5.4% 2019
4.6% 2020
3.2% 2021
3.3% 2022
5.3% 2023
6.6% 2024
7.6% 2025
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Questions? Ask Rey
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Frequently Asked Questions

What type of property is this?
Flex space - Main Street building with B-1 zoning and two overhead doors supports a range of commercial configurations.
Where is this flex space located?
The property is located at -405 Main Street South Amboy, NJ.
What is the asking price?
The asking price for this property is $350,000.
What are key features of this property?
This property features: Approximately 1,500 SF building on an irregular lot; Two overhead doors exceeding 10 feet in height; B‑1 zoning; permitted uses to be verified with the City of South Amboy
(732) 721-9000 Call to check price and availability
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